Irenics I*ren"ics, n. (Eccl.)
That branch of Christian science which treats of the methods
of securing unity among Christians or harmony and union among
the churches; -- called also {Irenical theology}.
--Schaff-Herzog.
[1913 Webster]

Irenics — I*ren ics, n. (Eccl.) That branch of Christian science which treats of the methods of securing unity among Christians or harmony and union among the churches; called also {Irenical theology}. Schaff Herzog. [1913 Webster] … The Collaborative International Dictionary of English